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USER MANUAL HEADLINES
Unpacking 2
Warnings
2
User responsibility 2
1.
Speaker damage
2.
Speaker output hazard.
3.
Radio interference.
Introduction
1.
Front panel
2.
Rear panel
Installation
1.
Mounting
2.
Cooling
3.
Operating voltage
4.
Grounding
5.
Power consumption
6.
Input connections
7.
Connecting speakers
8.
Impedance matching (MLS-switches)
Operation modes
1.
Stereo
2.
Tandem mono
3.
Bridged mono
4.
Stereo reverse
Operation
1.
Operation precautions
2.
Powering up -Soft start
3.
Input attenuators
4.
Gain switch
5.
Indicators
Protections
1.
Clip-limiter
2.
Thermal protection
3.
VHF protection
4.
Short circuit protection
5.
AC mains voltage protection
6.
D.C. protection
LAB 2000C
USER MANUAL
3
4
7
8
9
Design features
Cooling
Light weight
Regulated power supply
Safety approvals
EMC approvals
Specifications
EMC-declaration
Appendix A
Mains voltage selection
Maintenance
Troubleshooting
Warranty and disclaimers
General
International
Technical assistance and services 13
International
Factory services
10
11
12
12
12
13
1
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Summary of Contents for Lab.gruppen LAB 2000C
- Page 1 USER MANUAL HEADLINES LAB 2000C USER MANUAL Unpacking 2 Warnings User responsibility 2 Speaker damage Design features Speaker output hazard. Cooling Radio interference. Light weight Regulated power supply Introduction Safety approvals Front panel EMC approvals Rear panel Specifications Installation EMC-declaration...
- Page 2 Unpacking User responsibility Carefully open the shipping carton and check for Speaker damage any noticeable damage. Every LAB.GRUPPEN Your amplifier is very powerful and can be amplifier is tested and inspected before leaving the potentially dangerous to both loudspeakers and humans alike.
- Page 3 Introduction Thank you for purchasing a LAB.GRUPPEN power amplifier. The amplifier you have chosen is the culmination of many years of Research and Development. This amplifier makes amplification more controllable instead of the traditional "Boring black box" you have become accustomed to.
- Page 4 AC mains. For converting a 230 volt amplifier to 115 volt or Cooling vice-versa, see Appendix A. Your amplifier uses forced air cooling system to LAB.GRUPPEN switch mode amplifier maintain a low and even operating temperature. All primary switching, i.e.
- Page 5 30 second and the amplifier MAX OUTPUT POWER MAINS INPUT POWER Power Full Power 1/3 Power 1/8 Power Idle sine wave note 1 note 2 LAB 2000C 8 ohms 1000 2900 1200 4 ohms 1400 4300 1700 2 ohms 1800...
- Page 6 Figure 8.This is similar to the losses. connection for balanced lines, but pin 3 is tied down As stated earlier the LAB 2000C can produce 1000 to shield, at the source side instead. The hum and watts into any impedance between 1.5 and 8 ohms.
- Page 7 MLS positions when connected to lower impedance's see Table 2. As you can see from Table 2 the LAB 2000C can produce in excess of 1000 watts. LAB 2000C MLS switch MLS Position Speaker Impedance 1.5 ohms 2 ohms...
- Page 8 Figure 11. Bridge mono connection Both level attenuators must be at the same position. Figure 12. Stereo reverse mode We recommend you to put them in the 0 dB (full) position. Channel A output is connected as in the normal stereo mode.
- Page 9 A Crowbar bar protection that shorts the output. Both these circuits come into effect once a DC level of 10 volts or more is detected on either channel. The LAB.GRUPPEN amplifier runs very cool due Design features to a patented heat sink called Intercooler .
- Page 10 Efficiency is also assured, and in the case of the How is this achieved? In contrast to other designs, LAB 2000C this is especially apparent ; its power that use push pull converters we have managed to supply draws only 4 kW and yet it produces 2 x...
- Page 11 LAB.GRUPPEN amplifiers are designed to meet the Transients and bursts up to 1 kV, conducted IEC65, a stringent electrical safety approval from the through the cables to the unit. International Electro-technical Commission. The Electromagnetic fields up to 3 V/m, radiated on...
- Page 12 Appendix A Mains voltage selection LAB 2000C is normally shipped for 230 volt AC operation only. For export there is a 115/230 volt AC option available. To check if the amplifier is equipped with this option, please follow these steps: Make sure that the LAB 2000C is unplugged from the mains voltage.
- Page 13 LAB.GRUPPEN dealer or distributor, owner, when failing to perform as specified, or contact LAB.GRUPPEN by fax, to obtain the provided the unit is returned undamaged and location of the nearest authorised service centre.
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